How do you solve #7m + 4m = 99#?

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Answer 1 · 2018-04-15T17:45:32

#m=9#

#7m+4m=11m#
#11m=99#
#m=9#

Answer 2 · 2018-04-15T17:46:29

#m=9#

#m(7+4)=99#
#11m=99//-:11#
#(11m)/11=99/11#
#(color(red)cancel11m)/color(red)cancel11=9#
#m=9#